Influences of growth stage and nitrogen fertilizer on chemical composition, phenolics, in situ degradability and in vitro ruminal variables in amaranth forage

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Influences of growth stage and nitrogen fertilizer on chemical composition, phenolics, in situ degradability and in vitro ruminal variables in amaranth forage

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作者：B. Sarmadi ; Y. Rouzbehan ; ^{rozbeh_y@modares.ac.ir" class="auth_mail" title="E-mail the corresponding author} ; ^{faranakuk@yahoo.com" class="auth_mail" title="E-mail the corresponding author} ; J. Rezaei
关键词：A ; soluble and very rapidly degradable fraction ; ADFom ; ash-free acid detergent fiber ; B ; insoluble but potentially fermentable fraction ; C ; fractional degradation rate of B ; CP ; crude protein ; DM ; dry matter ; DUP ; digestible undegradable protein ; ED ; effective degradability ; EE ; ether extract ; ERDP ; effective rumen degradable protein ; GP ; gas production ; Lignin(sa) ; lignin measured by solubilizing cellulose with sulphuric acid ; MCP ; microbial crude protein ; ME ; metabolisable energy ; MP ; metabol
刊名：Animal Feed Science and Technology
出版年：2016
出版时间：May 2016
年：2016
卷：215
期：Complete
页码：73-84
全文大小：579 K

文摘

•: More aged amaranth had lower non protein-N and degradability.
•: Increasing plant age reduced gas production, but increased methane proportion.
•: Advancing plant age reduced cellulolytic bacteria without effect on protozoa.
•: Higher N fertilizer decreased the adverse effect of growth stage on plant quality.
•: Increasing N fertilization enhanced in vitro ruminal cellulolytic bacteria.